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 * https://quilljs.com/
 * Copyright (c) 2014, Jason Chen
 * Copyright (c) 2013, salesforce.com
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.2s;letter-spacing:.03em}.nav-link:hover,.nav-link.active{background:#ffd70026;color:var(--gold-light);text-decoration:none}.nav-user{font-size:.85rem;color:var(--cream-dark);padding:0 12px}.app-layout{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;padding:32px;max-width:1200px;margin:0 auto;width:100%}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;padding-bottom:16px;border-bottom:2px solid var(--border)}.page-title{display:flex;align-items:center;gap:12px}.page-title h1{font-size:1.8rem}.course-title{font-family:Times New Roman,Times,serif;letter-spacing:normal}.divider{display:flex;align-items:center;gap:16px;margin:24px 0;color:var(--text-muted);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase}.divider:before,.divider:after{content:"";flex:1;height:1px;background:linear-gradient(to right,transparent,var(--border),transparent)}.lotus-ornament{text-align:center;margin:12px 0;opacity:.5}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:20px}.course-card{background:var(--white);border-radius:var(--radius);border:1px solid var(--border);box-shadow:0 2px 12px var(--shadow);overflow:hidden;transition:transform .2s,box-shadow .2s;cursor:pointer}.course-card:hover{transform:translateY(-3px);box-shadow:0 6px 24px #80000033}.course-card-header{background:linear-gradient(135deg,var(--maroon),var(--maroon-dark));padding:20px;color:var(--cream)}.course-card-header h3{color:var(--gold-light);font-size:1.05rem;margin-bottom:6px;font-family:Times New Roman,Times,serif;letter-spacing:normal}.course-card-header p{font-size:.85rem;color:var(--cream-dark);opacity:.85}.course-card-body{padding:16px 20px}.course-card-footer{padding:12px 20px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;background:var(--cream)}.tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:24px}.tab-btn{padding:10px 20px;background:none;border:none;border-bottom:3px solid transparent;margin-bottom:-2px;cursor:pointer;font-family:Lato,sans-serif;font-size:.9rem;font-weight:700;color:var(--text-muted);transition:all .2s;white-space:nowrap}.tab-btn:hover{color:var(--saffron-dark)}.tab-btn.active{color:var(--maroon);border-bottom-color:var(--saffron)}.viewer-modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#2c1a0ebf;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.viewer-modal{background:var(--white);border-radius:var(--radius);width:100%;max-width:900px;max-height:90vh;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 20px 60px #0006}.viewer-modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;background:linear-gradient(135deg,var(--maroon),var(--maroon-dark));color:var(--cream)}.viewer-modal-header h3{color:var(--gold-light);font-size:1rem}.viewer-modal-body{flex:1;overflow:auto;min-height:400px}.viewer-modal-body iframe{width:100%;height:70vh;border:none;display:block}.viewer-modal-body audio{width:100%;padding:24px}.btn-close{background:none;border:none;cursor:pointer;color:var(--cream);font-size:1.4rem;line-height:1;padding:4px;opacity:.8}.btn-close:hover{opacity:1}.attachment-list{list-style:none;display:flex;flex-direction:column;gap:8px}.attachment-item{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--cream);border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:background .2s,border-color .2s}.attachment-item:hover{background:var(--cream-dark);border-color:var(--saffron)}.attachment-icon{font-size:1.4rem;flex-shrink:0}.attachment-label{font-weight:700;color:var(--text-mid);font-size:.95rem}.attachment-type{margin-left:auto;font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--text-muted);background:var(--cream-dark);padding:2px 8px;border-radius:12px;border:1px solid var(--border)}.data-table{width:100%;border-collapse:collapse;font-size:.9rem}.data-table thead tr{background:linear-gradient(135deg,var(--maroon),var(--maroon-dark));color:var(--cream)}.data-table thead th{padding:12px 16px;text-align:left;font-family:Cinzel,serif;font-size:.82rem;letter-spacing:.05em;font-weight:600}.data-table tbody tr{border-bottom:1px solid var(--border);transition:background .15s}.data-table tbody tr:hover{background:var(--cream)}.data-table tbody td{padding:12px 16px;color:var(--text-dark)}.badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:.75rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}.badge-admin{background:var(--maroon);color:var(--cream)}.badge-student{background:var(--saffron);color:var(--white)}.alert{padding:12px 18px;border-radius:var(--radius-sm);font-size:.9rem;margin-bottom:16px;border:1px solid transparent}.alert-error{background:#fff0ee;border-color:#f5a9a9;color:#8b0000}.alert-success{background:#f0fff4;border-color:#9bdfb1;color:#1a6b3c}.alert-warning{background:#fffbea;border-color:var(--gold);color:#7a5c00}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(160deg,var(--cream) 0%,var(--cream-dark) 40%,#EEDED8 100%);position:relative;overflow:hidden}.login-page:before{content:"";position:absolute;top:-80px;right:-80px;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,153,51,.12) 0%,transparent 70%)}.login-page:after{content:"";position:absolute;bottom:-60px;left:-60px;width:250px;height:250px;border-radius:50%;background:radial-gradient(circle,rgba(128,0,0,.08) 0%,transparent 70%)}.login-card{background:var(--white);border-radius:16px;border:1px solid var(--border);box-shadow:0 8px 40px #8000002e;padding:48px 40px;width:100%;max-width:420px;position:relative;z-index:1}.login-logo{text-align:center;margin-bottom:28px}.login-logo img{width:70px;height:70px;margin-bottom:12px}.login-logo h1{font-size:2rem;color:var(--maroon)}.login-logo p{font-size:.85rem;color:var(--text-muted);letter-spacing:.08em;text-transform:uppercase;margin-top:4px}.ql-toolbar{border:1px solid var(--border)!important;border-radius:var(--radius-sm) var(--radius-sm) 0 0!important;background:var(--cream)!important}.ql-container{border:1px solid var(--border)!important;border-top:none!important;border-radius:0 0 var(--radius-sm) var(--radius-sm)!important;background:var(--white)!important;min-height:200px;font-family:Lato,sans-serif!important}.ql-editor{min-height:200px;font-family:Lato,sans-serif!important;color:var(--text-dark)!important}.spinner-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#fff8e7cc;display:flex;flex-direction:column;align-items:center;justify-content:center;z-index:999;gap:16px}.spinner{width:48px;height:48px;border:4px solid var(--border);border-top-color:var(--saffron);border-radius:50%;animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.spinner-text{font-family:Cinzel,serif;color:var(--maroon);font-size:.9rem;letter-spacing:.1em}.empty-state{text-align:center;padding:60px 20px;color:var(--text-muted)}.empty-state .empty-icon{font-size:3rem;margin-bottom:16px;opacity:.5}.empty-state p{font-size:1rem;margin-bottom:20px}.admin-layout{display:flex;min-height:calc(100vh - 64px)}.admin-sidebar{width:220px;background:linear-gradient(180deg,var(--maroon-dark),var(--maroon));padding:24px 0;flex-shrink:0;box-shadow:3px 0 12px #5c00004d}.sidebar-label{padding:8px 20px 4px;font-size:.7rem;letter-spacing:.12em;text-transform:uppercase;color:#fff8e780;font-family:Cinzel,serif}.sidebar-link{display:flex;align-items:center;gap:10px;padding:11px 20px;color:#fff8e7d9;font-size:.9rem;font-weight:700;transition:background .2s,color .2s;border-left:3px solid transparent}.sidebar-link:hover,.sidebar-link.active{background:#ffd7001f;color:var(--gold-light);border-left-color:var(--saffron);text-decoration:none}.admin-main{flex:1;padding:32px;overflow-y:auto}.navbar-hamburger{display:none;background:none;border:none;cursor:pointer;color:var(--cream);font-size:1.5rem;padding:4px 8px;line-height:1;margin-left:auto}.table-responsive{overflow-x:auto;-webkit-overflow-scrolling:touch}@media(max-width:768px){.navbar{padding:0 16px;height:auto;min-height:56px;flex-wrap:wrap;gap:0}.navbar-brand{font-size:1.1rem}.navbar-brand img{width:28px;height:28px}.navbar-hamburger{display:flex;align-items:center}.navbar-nav{display:none;width:100%;flex-direction:column;align-items:stretch;padding:8px 0 12px;gap:2px;border-top:1px solid rgba(255,255,255,.1);margin-top:4px}.navbar-nav.open{display:flex}.nav-link{padding:10px 12px;border-radius:0}.nav-user{padding:10px 12px}.main-content{padding:16px}.page-header{flex-wrap:wrap;gap:10px}.page-title h1{font-size:1.3rem}.card{padding:16px}.course-grid{grid-template-columns:1fr}.tabs{overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch}.tab-btn{flex-shrink:0}.data-table{min-width:480px}.form-grid-3{grid-template-columns:1fr!important}.login-card{padding:28px 20px}.login-logo h1{font-size:1.6rem}.admin-layout{flex-direction:column}.admin-sidebar{width:100%;padding:0;display:flex;flex-direction:row;overflow-x:auto;-webkit-overflow-scrolling:touch;box-shadow:0 3px 8px #5c00004d}.sidebar-label{display:none}.sidebar-link{white-space:nowrap;padding:12px 16px;border-left:none;border-bottom:3px solid transparent;flex-shrink:0}.sidebar-link:hover,.sidebar-link.active{border-bottom-color:var(--saffron);border-left-color:transparent}.admin-main{padding:16px}.viewer-modal{max-height:95vh;margin:10px}.viewer-modal-body iframe{height:55vh}.btn{padding:8px 14px}.btn-sm{padding:5px 10px}}